Rubber roll



Jan. 12 ,1925. 1,569,393 J. JURATHERS was 30m Filed Nov. 5, 1923 Patented Jan. 12, 1926.

UNITED ST -res PATENT orat on.

JOHN J. BATEEBS, or main, PENNSYLVANIA, nssreuon TO LOVELL moreo'runnvd 001mm, or new, PENNSYLVANIA,

A CORPORATION PENNSYLVANIA.

RUBBER ROLL.

A 'pplication flled November 3, 19213 "Serial No. 67 2521.

To all whom it may concern:

Be it known that I, JOHN J. RA'rnnns, a citizen of the United States, residing at Erie,'in the county of Erie andState of Pennsylvania, have invented new and'useful Im rovements in Rubber Rolls, of which the fol owing is a specification.

' This invention is designed toimprove rubber rolls such as are used in wringers and the methodby which the are made. As such rolls have beenmadet ey havea rubber body which is bonded on a metal rod and the ends of the rolls are confined by -metal shoulders, or washers which are secured to the rod. Onedifliculty with the metalwashor is that it is inclined to rust if made of ordinary metal and this rust is conveyed.

to thesurface of the roll and from thejroll to the clothes. Furthermore, the present. structure is in some of its forms cheaper than thestructure using the ordinary metal washer. 1

' The invention is illustrated in the'accompanying drawings as follows end. V

Fig. 2 .a side elevation of a rubber stock to form a washer at the end of the roll.

Fig. 3 a sectional view of roll molds. Fig. 4 a construction of roll having additiona'l features from that of Fig. I. Fig. 5a side elevation of a metal washer used in the structure shown in Fig. 4.

1 marksthe rod and 2 the body" of rub-- ber. These are bonded together by the usual method.

A washer 3 formed of hard rubber is'arranged at the end of the roll and ,in the construction shown in Fig. 1 displaces in this '40 construction the usual metal washer.

In forming the roll I prefer to partially vulcanize the stock forming the washer3 and then complete the vulcanization with the body of the roll. This prevents any running of the washer stock and makes a clean-cut washer outline in the end of the roll. The stock used in the washer and roll should be sympathetic so as to'bond together as they'arevulcanized.

The rolls areusually vulcanized in molds 4 having therlosure caps5, clamping plates 6 operating on the caps and the clamping bolts 7 extending between the plates 6. 7

It is desirable to prevent the steam to which the molds are. subjected entering be- Fig. 1 shows a section of'a rubberroll 1 roll bonded to the rod.

*to the'rod. In order to enclose the" metalwasher, the hard washer 3"is arranged out side of the metal washer and vulcanized with fthe roll in the manner above described, the rubber washer preferably bonding with the metal washer and with .the rubber of the tweenlthe body of rubber and the rod as.

body of the roll; Where this is done greater strength of the metal washer-is secured and 1 the metal is entirely housed so prevent anyrusting. I I

What I claimas new is:-, J 4

A rubber roll comprisin' a metal rod; a roll body of comparative y soft rubber bonded to the rod; and a washer ofcomparatively hard rubber at-the end of the roll. 2. A rubber rollcomprising a metal rod;

a roll body of comparatively soft rubber bonded to the rod; and a washer of comparatively hard rubber at the end of the so i 3. A rubber roll comprisin" a metal rod;

a roll, body of comparativey soft rubber bonded to the rod; and av washer of comparatively hard rubber at the end of the roll bonded tothe soft rubber.

4. A- rubber roll comprising a metal rod; a roll body of comparatively soft rubber bonded to the rod; and a washer of comparatively hard rubber at the end of the roll bonded to the rod and the rubber body.

5. A rubber roll comprising a metal rod; a roll bod bonded to t e rod; a washer. of comparatively hard rubber at the end of the roll; and

of comparatively vsoft rubber a inetal washer between the hard rubber washer and therubber body, said: metal washer being entirely' -enclosed.'

6."A rubber roll comprising'a metal rod;

a roll body of comparatively soft rubber bondedto the rod; a washer of'comparatively hard rubber. at the end "of the roll;

and a metal washerbetween the hard rubber washer and the rubber body, said 'metal washer being entirely enclosed, the rubber washer being bonded to the metal washer and' to the rubber body.

In testimony whereof 'I have hereunto set my hand.

. JOHN J. RATHERS'. 

